id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-297022-zs5m36cp	Kwong, Jeffrey C.	Appropriate measures of influenza immunization program effectiveness	2007-01-22		.txt	text/plain	911	42	45	Groll and Thomson's evaluation of the effectiveness of Ontario's Universal Influenza Immunization Campaign used per capita cases of laboratory-confirmed influenza. A better measure of viral activity is the proportion of influenza tests positive; whereas the weekly proportion of tests positive was relatively consistent, a marked increase over time in the numbers of laboratory-confirmed cases paralleled an increase in the number of tests performed. Regardless, for evaluating universal influenza immunization program effectiveness, other established and available measures employed in previous studies describing the epidemiology of influenza should be used instead of laboratory data. In their evaluation of Ontario's Universal Influenza Immunization Campaign, Groll and Thomson state that there is a lack of high-quality influenza outcome data in Ontario, so instead they examined the effectiveness of the program using per capita cases of laboratory-confirmed influenza [1] . A better measure of viral activity is the proportion of influenza tests positive (the number of cases of lab-confirmed influenza divided by the number of tests performed).	./cache/cord-297022-zs5m36cp.txt	./txt/cord-297022-zs5m36cp.txt